The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Nov. 28, 2006
Kenneth Wai Ming Hung, Hong Kong, HK;
Kenneth Wai Ming Hung, Hong Kong, HK;
Smartech Worldwide Limited, Hong Kong, CN;
Abstract
An electrostatic discharge protection circuit for an electronic device includes an output buffer including a transistor having a gate configured to receive a control signal, a source connected to a voltage supply terminal, and a drain connected to a pad; and an ESD trigger circuit configured to produce a first electronic signal in response to an electrostatic voltage between the pad or the voltage supply terminal. The first electronic signal can isolate the control signal from the gate of the transistor and to turn on the transistor to discharge the electrostatic voltage between the pad and the voltage supply terminal.